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180664698
comment
byjbengt
026 @08:02AM
(#65951976)
Attached to: Work-From-Office Mandate? Expect Top Talent Turnover, Culture Rot
Did he still do his work?
Sort of. At that point he wasn't really trying too hard to do a good job.
Then whats the problem where he did it from?
Inevitably he was going to be asked to visit a job site, come into the office for some upgrade to his laptop, or any number of things that he couldn't do from overseas.
Sounds like you're jealous he got to do his work while sitting on a beach, while you had to waste hours of your time trekking into a miserable office every day.
LOL. I don't think he was sitting on a beach in March in Istanbul, and I was working from home during that time, not commuting (except for the occasional job site visit). Also, the office wasn't miserable, my commute was just long.
I wasn't jealous, I thought it was funny. The main problem I had with it was that he told me, so if my boss asked me about him it would put me in a difficult position. (Thankfully, that never happened, he was quietly fired after a couple of months, they never discussed it, never told anyone why he was let go.)
180659074
comment
byjbengt
26 @08:55AM
(#65949712)
Attached to: Startup Uses SpaceX Tech to Cool Data Centers With Less Power and No Water
the only new thing mentioned is maybe using some snake faster compressors
Yeah, but the quoted 30,000 RPM is not that high of a speed for centrifugal compressors using standard refrigerants.
TFA doesn't really say much, but I'm guessing that it's some system that runs CO2 at high pressures and temperatures to cool the CPUs directly, and reject the heat to the outside air without a mechanical refrigeration cycle to raise the heat rejection temperature, since you're already running the CPUs at above-ambient temperatures.
180659022
comment
byjbengt
26 @08:48AM
(#65949698)
Attached to: Startup Uses SpaceX Tech to Cool Data Centers With Less Power and No Water
TFA states 35,000 gallons a day is used for a medium sized data center, that's only 24 gallons per minute used. Assuming a 1.5% evaporation rate plus a 1.5% blowdown rate (to keep dissolved solids in check), that's 810 gallons per minute circulated. I think they are conflating water circulating and water used, but even with that they still seem to be off.
TFA doesn't explain anything about the system and seems to have a lot of misunderstanding. For example: 30,000 RPM is not unusual for centrifugal chillers. TFA includes a link to some Trane chiller system literature, but the only RPM references in that is to pumps for water circulation, which tend to be 1750 RPM, sometimes 3,500 RPM, with operating speeds usually controlled with variable speed drives.
180658952
comment
byjbengt
26 @08:32AM
(#65949670)
Attached to: Startup Uses SpaceX Tech to Cool Data Centers With Less Power and No Water
You can do it either way, but spraying the condenser water directly into the air stream of a cooling tower is much more common.
180658936
comment
byjbengt
26 @08:30AM
(#65949662)
Attached to: Startup Uses SpaceX Tech to Cool Data Centers With Less Power and No Water
The cooling side of a typical water chiller system is closed loop. The heat rejection side is often open loop - but they don't just dump the water, they run it through a cooling tower and blow ambient air across the water spray. An evaporation rate of about 1.5% of the circulated water cools the water close to the wet bulb temperature of the outside air. Numbers may vary, but with a 78F ambient wet bulb, the condenser water can get cooled down to about 85F even when the outside air temperature is 95F. Another 1.5% +/- of the water circulated is bled off and replaced with fresh water to keep solids from building up too much. I have designed systems w/ closed loops for heat rejection; with those you would be lucky to get the water entering the refrigeration condenser down to 105F when outdoor temperatures are 95F, which is obviously much less efficient than cooling the refrigerant with 85F water.
180654450
comment
byjbengt
26 @12:58PM
(#65948186)
Attached to: Work-From-Office Mandate? Expect Top Talent Turnover, Culture Rot
So one person out of a million takes advantage and you want to take it out on the million. In other words, you will only accept work from home once all people are infallible.
Oh, hell no. My commute was a bitch. Work from home was a blessing.
Though, since I worked in the design end of construction, and construction was considered an essential service, even during the Covid work-from-home mandate I was still getting out of the house a couple of times a month to visit construction sites. I feel that working from home 3 or 4 days a week is ideal for me.
180653594
comment
byjbengt
26 @08:04AM
(#65947804)
Attached to: Work-From-Office Mandate? Expect Top Talent Turnover, Culture Rot
I agree, also.
When living in the city, I could read the paper when on a crowded "L" train, even when standing, and the hour commute was only 20 minutes on the train, 20 minutes on a bus, some walking and some waiting.
When living in the suburbs it was an hour and a quarter train ride, with seats almost always available, and I could read, work, play on my laptop, or sleep. Much better (and cheaper) than driving, even if driving would cut off 15 to 30 minutes of commute time.
180653556
comment
byjbengt
26 @07:53AM
(#65947788)
Attached to: Work-From-Office Mandate? Expect Top Talent Turnover, Culture Rot
You missed one a co-worker of mine did:
- Traveling overseas for six months on a tourist visa while "working from home".
180573174
comment
byjbengt
026 @08:21AM
(#65920456)
Attached to: EPA To Stop Considering Lives Saved By Limiting Air Pollution
Yes, but there is also a significant risk that this would be due to all-out nuclear exchange and resulting nuclear winter.
The risk of a nuclear exchange has never been insignificant, and is not lower under Trump.
180573168
comment
byjbengt
026 @08:18AM
(#65920450)
Attached to: EPA To Stop Considering Lives Saved By Limiting Air Pollution
Civil courts already take into account factors such as age, earning ability, etc. when calculating damages to survivors in wrongful death cases. It's wrong on its' face, as life itself can't really be valued in dollars, but dollars are needed to to have consistent units for the calculation of balancing costs. To me, if you don't put a dollar value on loss of life, then you should count a life above any dollars in cost.
180312985
comment
byjbengt
2025 @11:19AM
(#65839469)
Attached to: Blackest Fabric Ever Made Absorbs 99.87% of All Light That Hits It
Well, this thread was getting into semantics before I added my 2cents. I was trying to comment on your comment about layman's terms when your definition of heat is itself layman's terms and is more a definition of thermal energy (no offense meant, I tend to be pedantic)
But you're right in that light and heat are not synonyms. Still, if you're talking about black body radiation, you're talking about heat.
180311181
comment
byjbengt
2025 @08:02AM
(#65839255)
Attached to: Blackest Fabric Ever Made Absorbs 99.87% of All Light That Hits It
Strictly speaking they are entirely different things. Light is radiation in the visible portion of the em spectrum. Heat is the kinetic energy of atoms or molecules, so not the same.
Strictly speaking, heat is energy transferring from one body/system to another due to a temperature difference between them. So it can be electromagnetic radiation.
180274021
comment
byjbengt
2025 @08:21AM
(#65832169)
Attached to: Study Finds Tattoo Ink Moves Through the Body, Killing Immune Cells
"Lamb of God" is a reference to the Passover story, where the blood of sacrificial lambs was used to mark the Jews' doors to indicate that there first-born sons were already killed by Pharaoh's troops.
"Word of God", "Logos" in the original Greek of the New Testament, probably refers to the organizing, generative principle of the Cosmos, which was believed to be something like rationality / logic (as opposed to chaotic) by many ancient philosophers.
180192971
comment
byjbengt
025 @08:27AM
(#65814923)
Attached to: How the Internet Rewired Work - and What That Tells Us About AI's Likely Impact
Even in my lifetime, it was almost impossible to have one job that would last your entire career.
If by job, you mean type of work, not employers, I've had one job in 43 years. I've had 4 employers (only 2 if you don't count selling the business as a change in employer), but Ive always been in the business of designing HVAC, Plumbing, & Fire Protection systems. A lot has changed in that job over the years, but it's still essentially the same job.
180192893
comment
byjbengt
025 @08:12AM
(#65814907)
Attached to: How the Internet Rewired Work - and What That Tells Us About AI's Likely Impact
A good web catalog will be far superior to any paper catalog
I've yet to find a "web catalog" that's easier to use than a paper catalog. Better yet would be a .pdf of the paper catalog linked on the company web site.
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